org.apache.sentry.provider.db.service.thrift.TestSentryServiceWithInvalidMsgSize.java Source code

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Here is the source code for org.apache.sentry.provider.db.service.thrift.TestSentryServiceWithInvalidMsgSize.java

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/**
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package org.apache.sentry.provider.db.service.thrift;

import com.google.common.collect.Sets;
import org.apache.hadoop.conf.Configuration;
import org.apache.sentry.core.common.exception.SentryUserException;
import org.apache.sentry.service.thrift.SentryServiceClientFactory;
import org.apache.sentry.service.thrift.SentryServiceFactory;
import org.apache.sentry.service.thrift.SentryServiceIntegrationBase;
import org.apache.sentry.service.thrift.ServiceConstants;
import org.junit.Assert;
import org.junit.Test;

import java.util.Set;

/**
 * Test sentry service with a larger message size than the server's or client's thrift max message size.
 */
public class TestSentryServiceWithInvalidMsgSize extends SentryServiceIntegrationBase {
    private final Set<String> REQUESTER_USER_GROUP_NAMES = Sets.newHashSet(ADMIN_GROUP);
    private final String ROLE_NAME = "admin_r";

    /**
     * Test the case when the message size is larger than the client's thrift max message size.
     */
    @Test
    public void testClientWithSmallMaxMsgSize() throws Exception {
        runTestAsSubject(new TestOperation() {
            @Override
            public void runTestAsSubject() throws Exception {
                SentryServiceClientFactory oldFactory = SentryServiceClientFactory.factoryReset(null);
                Configuration confWithSmallMaxMsgSize = new Configuration(conf);
                confWithSmallMaxMsgSize
                        .setLong(ServiceConstants.ClientConfig.SENTRY_POLICY_CLIENT_THRIFT_MAX_MESSAGE_SIZE, 20);
                // create a client with a small thrift max message size
                SentryPolicyServiceClient clientWithSmallMaxMsgSize = SentryServiceClientFactory
                        .create(confWithSmallMaxMsgSize);

                setLocalGroupMapping(ADMIN_USER, REQUESTER_USER_GROUP_NAMES);
                writePolicyFile();

                boolean exceptionThrown = false;
                try {
                    // client throws exception when message size is larger than the client's thrift max message size.
                    clientWithSmallMaxMsgSize.listAllRoles(ADMIN_USER);
                } catch (SentryUserException e) {
                    exceptionThrown = true;
                    Assert.assertTrue(e.getMessage().contains("Thrift exception occurred"));
                    Assert.assertTrue(e.getCause().getMessage().contains("Length exceeded max allowed"));
                } finally {
                    Assert.assertEquals(true, exceptionThrown);
                    clientWithSmallMaxMsgSize.close();
                    SentryServiceClientFactory.factoryReset(oldFactory);
                }

                // client can still talk with sentry server when message size is smaller.
                client.dropRoleIfExists(ADMIN_USER, ROLE_NAME);
                client.listAllRoles(ADMIN_USER);
                client.createRole(ADMIN_USER, ROLE_NAME);
                client.listAllRoles(ADMIN_USER);
            }
        });
    }

    /**
     * Test the case when the message size is larger than the server's thrift max message size.
     */
    @Test
    public void testServerWithSmallMaxMsgSize() throws Exception {
        runTestAsSubject(new TestOperation() {
            @Override
            public void runTestAsSubject() throws Exception {
                Configuration confWithSmallMaxMsgSize = new Configuration(conf);
                confWithSmallMaxMsgSize
                        .setLong(ServiceConstants.ServerConfig.SENTRY_POLICY_SERVER_THRIFT_MAX_MESSAGE_SIZE, 50);
                stopSentryService();

                // create a server with a small max thrift message size
                server = SentryServiceFactory.create(confWithSmallMaxMsgSize);
                startSentryService();

                setLocalGroupMapping(ADMIN_USER, REQUESTER_USER_GROUP_NAMES);
                writePolicyFile();

                // client can talk with server when message size is smaller.
                client.listAllRoles(ADMIN_USER);
                client.createRole(ADMIN_USER, ROLE_NAME);

                boolean exceptionThrown = false;
                try {
                    // client throws exception when message size is larger than the server's thrift max message size.
                    client.grantServerPrivilege(ADMIN_USER, ROLE_NAME, "server", false);
                } catch (SentryUserException e) {
                    exceptionThrown = true;
                    Assert.assertTrue(
                            e.getCause().getMessage().contains("org.apache.thrift.transport.TTransportException"));
                } finally {
                    Assert.assertEquals(true, exceptionThrown);
                }

                // client can still talk with sentry server when message size is smaller.
                Set<TSentryRole> roles = client.listAllRoles(ADMIN_USER);
                Assert.assertTrue(roles.size() == 1);
                Assert.assertEquals(ROLE_NAME, roles.iterator().next().getRoleName());
            }
        });
    }
}